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    <subfield code="a">Lavrentʹev, M. A.</subfield>
    <subfield code="q">(Mikhail Alekseevich),</subfield>
    <subfield code="d">1900-1980</subfield>
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    <subfield code="a">Lavrentʹev, Mikhail Alekseevich,</subfield>
    <subfield code="d">1900-1980</subfield>
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    <subfield code="a">Lavrentieff, M.,</subfield>
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    <subfield code="a">Lawrentjew, M. A.,</subfield>
    <subfield code="d">1900-1980</subfield>
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    <subfield code="a">Lavrentyev, M. A.,</subfield>
    <subfield code="d">1900-1980</subfield>
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    <subfield code="a">Лаврентьев, М. А.</subfield>
    <subfield code="q">(Михаил Алексеевич),</subfield>
    <subfield code="d">1900-1980</subfield>
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  <datafield ind1="1" ind2=" " tag="400">
    <subfield code="a">Лаврентьев, Михаил Алексеевич,</subfield>
    <subfield code="d">1900-1980</subfield>
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  <datafield ind1=" " ind2=" " tag="667">
    <subfield code="a">Non-Latin script references not evaluated</subfield>
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  <datafield ind1=" " ind2=" " tag="670">
    <subfield code="a">His Konformnye otobrazhenii︠a︡ ... mekhaniki, 1946.</subfield>
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  <datafield ind1=" " ind2=" " tag="670">
    <subfield code="a">His Nauka, tekhnicheskiĭ progress, kadry, 1980:</subfield>
    <subfield code="b">t.p. (M. A. Lavrentʹev) colophon (Mikhail Alekseevich Lavrentʹev)</subfield>
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  <datafield ind1=" " ind2=" " tag="670">
    <subfield code="a">Problemy matematiki i mekhaniki, 1983:</subfield>
    <subfield code="b">t.p. (akademika M.A. Lavrentʹeva) port. (Mikhail Alekseevich Lavrentʹev, 1900-1980 gg.)</subfield>
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  <datafield ind1=" " ind2=" " tag="670">
    <subfield code="a">His Matematika i mekhanika, 1990:</subfield>
    <subfield code="b">t.p. (M.A. Lavrentʹev) verso t.p. (Lavrentyev, M.A.)</subfield>
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  <datafield ind1=" " ind2=" " tag="670">
    <subfield code="a">LC database, July 23, 2010</subfield>
    <subfield code="b">(hdg.: Lavrentʹev, Mikhail Alekseevich, 1900- ; usage: M.A. Lavrentʹev)</subfield>
  </datafield>
  <datafield ind1=" " ind2=" " tag="670">
    <subfield code="a">Russia Wikipedia WWW site, July 23, 2010</subfield>
    <subfield code="b">(Михаил Алексеевич Лаврентьев = Mikhail Alekseevich Lavrentʹev; b. Nov. 6 (19), 1900, Kazanʹ; d. Oct. 15, 1980, Moscow; mathematician and specialist in mechanics)</subfield>
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